Vibration

Q.

To and fro motion of a particle along its mean position is also known as_________.

1. Speed

2. Vibration

3. Noise

4. Intensity

Q. Pick the percussion instrument from the following:

1. Guitar
2. Xylophone
3. (b) and (c) above.
4. Snare drum

Q.

The U-shaped bars in a tuning fork are called as _______.

1. Forks

2. Stems

3. Prongs

4. Tuners

Q. Xylophone is a percussion musical instrument.

1. True
2. False

Q.

One complete to and fro motion which constitutes a wave is called an __________.

Q.

Question 7 (a)
Identify the part which vibrates to produce sound in the following instruments.
(a) Dholak (b) Sitar (c) Flute

Q. Statement-1
Radiation involves transfer of heat by electromagnetic waves.
Statement-2
Electromagnetic waves do not required any material medium for propagation.

1. Statement-1 is true, Statement-2 is true and Statement-2 is the correct explanation for Statement-1.
2. Statement-1 is true, Statement-2 is true but Statement-2 is not the correct explanation for Staement-1.
3. Statement-1 is true, Statement-2 is false.
4. Statement-1 is false, Statement-2 is true.

Q.

What is Vibration?

Q.

Example to show the sound is produced due to the vibration of object

Q.

how does vibrating things produce sound

Q.

Sound is produced because of _______ of particle.

1. vibrations

2. rotations

3. random motion

4. charge

Q. Pick the percussion instrument among the following.

1. Guitar
2. Violin
3. Flute
4. Xylophone